Question:
Evaluate:
$\sqrt{98} \times \sqrt{162}$
Solution:
We have:
$\sqrt{98} \times \sqrt{162}$
$=\sqrt{98 \times 162}$
$=\sqrt{2 \times 7 \times 7 \times 2 \times 9 \times 9}$
$=2 \times 7 \times 9$
$=126$
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